P
US6452887B2ExpiredUtilityPatentIndex 84

Disk drive

Assignee: SONY CORPPriority: Aug 20, 1997Filed: Mar 7, 2001Granted: Sep 17, 2002
Est. expiryAug 20, 2017(expired)· nominal 20-yr term from priority
Inventors:NAKAYAMA TATSUYUKIAOKI SUNAO
G11B 7/08582G11B 17/056G11B 17/047G11B 17/0282G11B 33/121
84
PatentIndex Score
14
Cited by
4
References
3
Claims

Abstract

A disk drive including a turntable for holding and rotating a disk, a pickup for reading information carried by a signal and/or recording information carried by a signal to the disk by moving the pickup in a radial direction of the disk that is held and rotated by the turntable, and a feed motor for moving the pickup. A drive gear section, which engages a rack of the pickup, is integrally formed with a rotor of a sled motor. An axis of rotation of the sled motor is disposed parallel to an axis of rotation of the turntable. The disk drive makes it possible to perform seeking operations at a high speed, to reduce errors in movement of the pickup, and to achieve size reduction.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
       1. A disk drive, comprising: 
       a turntable assembly having a base, a turntable for holding and rotating a disk, and first and second guide members attached to the base, wherein said first guide member is formed as a rod and said second guide member is formed of folded sheet metal;  
       a pickup, which is mounted on said turntable assembly, for reading information from the disk and/or recording information carried to the disk by moving in a radial direction of the disk and being guided along said first and second guide members; and  
       a feed motor for moving said pickup and including a drive gear section that engages a rack of said pickup and a rotor, said drive gear section formed integrally with and integrally rotating with said rotor of said feed motor.  
     
     
       2. A disk drive according to  claim 1 , further comprising a tray for holding the disk being movable between a location where said tray is drawn out from an outside housing and a location where said tray is housed in said outside housing, wherein said first and second guide members are in a plane parallel to a plane of the disk held on said turntable and are arranged at an angle with respect to a direction of movement of said tray. 
     
     
       3. A disk drive according to  claim 1 , wherein while said pickup moves from an inner periphery to an outer periphery of an information recording area of the disk, said drive gear section is positioned at about a center of a range of movement of said rack.

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